Re: [libvirt] [PATCH v3 00/28] Introduce metadata locking

v3 of: https://www.redhat.com/archives/libvir-list/2018-August/msg00814.html What has changed since v2? A lot. - The lock manager was moved into security manager (which requires a lot of preparation which is done in first 8 or so patches). - The VIR_LOCK_SPACE_ACQUIRE_WAIT flag (2/7 in v2) is dropped as it turned out to be harmful. virlockd can't block under any circumstances. And we can not introduce a thread pool for it. - While going through the code I've found couple of bugs which I'm fixing in first few patches.

cfg.mk | 4 +- src/libvirt_private.syms | 2 + src/locking/lock_daemon.c | 3 + src/locking/lock_daemon_dispatch.c | 25 +- src/locking/lock_driver.h | 38 +++ src/locking/lock_driver_lockd.c | 520 ++++++++++++++++++++++++++----------- src/locking/lock_driver_lockd.h | 1 + src/locking/lock_driver_nop.c | 14 + src/locking/lock_driver_sanlock.c | 50 ++-- src/locking/lock_manager.c | 31 ++- src/locking/lock_manager.h | 7 + src/qemu/libvirtd_qemu.aug | 1 + src/qemu/qemu.conf | 6 + src/qemu/qemu_conf.c | 13 + src/qemu/qemu_conf.h | 1 + src/qemu/qemu_driver.c | 12 +- src/qemu/test_libvirtd_qemu.aug.in | 1 + src/security/security_dac.c | 213 +++++++++------ src/security/security_manager.c | 366 +++++++++++++++++++++++++- src/security/security_manager.h | 17 +-

src/util/virlockspace.c | 15 +- src/util/virlockspace.h | 4 + tests/testutilsqemu.c | 2 +- tests/virlockspacetest.c | 29 ++- 24 files changed, 1096 insertions(+), 279 deletions(-)